After much deliberation I went for the (rather expensive) Drift Ghost S.
Bought it from Beechdale Motorcycles Nottingham (checkout his riding videos on YouTube incl'g the earlier Ghost, the Ghost S and smaller less functional Drift Stealth)
I really wanted a non teletubby camera - correct. Vblogging just in case - correct. Waterproof charging without needing to change the battery - correct.
But, image stabilising - incorrect and satellite speed recording - incorrect.
Otherwise very good and clear sound (unlike TomTom model)
With included wrist band you can also take a still with single press of a large button. Band also colour flashes continually to show recording mode.
About 3hrs battery but carry powerpack in my inside pocket which can also boost phone, Just used Cleethorpes and back form Notts. Cracking video and security in involved in something nasty.
Check out the videos!
For satellite tracking I used the mycartracks app. Very recommended but need mobile data on your phone.